Hi I am a 24 yr old Male. Every time I masturbate to much, or have alot of long rough sex, that night or following day I tend to get a small red rash with a few blisters. They go away within 2-4 days without any treatment or ointments if I leave them alone. This again, only happens shortly after masturbating alot without lubes or if I have alot of sex in a short amount of time! Helppp!